Chair.



J. BENNETI CHAIR. APPLICATION FILED JULY 6.1917- memd Apr. 30,1918.

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IO BENNETT, IN., OE CHICAGO, ILLINOIS, ASSIGNOR, EY NIESNE ASSIG IUI at ES, TU

ECONONY SEAT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.'

Specification of Letters Patent. Patented Apm; INI

application mea July e, i917. serial no. waait.

To all whom it may concern:

Be it known that I, .IoHN BENNETT, Ir., a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and expensive to produce, gand secure in its op-l eration. 'Io this end my invention consists of a novel combination and arrangement of parts to be presently describedand claimed; and in order that the same may be better understood reference will be made to the accompanying drawing forming part of the specification, wherein- Figure 1 is an inverted plan view of a chair bottom showing the cushion operatively in place;

Fig. 2 is a longitudinal section taken on line 2 2 of Fig. 1;

Fig. 3 is an enlarged detail of a connection between the cushion and seat, somewhat different from that illustrated in Fig. 2; and

Fig. 4 is a plan view of the device shown in Fig. 3, the cushion being removed to expose the parts.

Referring specifically to the drawing, I have shownv a chair bottom. 5 the seat of which is in the form of a frame having an opening 6 over which is mounted a cushion or pad 7 secured to a backing plate 8. 'Ihe cushion may be upholstered in any approved manner. or bottom 5 the opening 6 is spanned by a bar 9 of wood or other appropriate material, the ends of the bar resting against the bottom of the seat and being preferably rounded as at 10 to provide a smooth end finish.

` Intermediate its ends the bar carries two threaded members 11 which, in Figs. 1 and 2, are shown as thumb-screws.- These threaded members pass through the open portion 6 of the chair seat and also through apertures formed in the backing plate 8. -On

.that side of the plate where the cushion is mounted, nuts 12 are positioned within which the ends of the threaded members 11 are engaged. Fach nut is held in a iixed On the under side of the chair seat 'position upon the plate by a staple 13 or" l other suitable device, it being intended that the range of action of the threaded members shall not be suiicient to displace the staples from the backing at any time.

By the fastening means heretofore denected to the seat portion of the chair, its removal bein eected by proper rotation of the threa ed devices to cause their disengagement from the nuts 12, whereupon the cross bar 9 is disconnected from the bacg plate of the cushion. 'Ihe entire cushion may then be removed for such purposes as are desired, and thereafter be replaced in position by a reversal of the operations described.

scribed, the cushion 7 is detachably con- In Figs. 3 and 4 I have shown a modication of the fastening means for connecting the cushion to the chair seat. This consists of a conical nut 14 provided with radially extending wings or lugs 15 adapted, when forced into a cylindrical aperture within the backing plate, to lie in substantially the posiytion indicated in Fig. 3. It will be noted that the wings are each embedded within the material orming the backing in such a way as to prevent rotation of the nut therewithin. Io prevent the nut from moving longitudinally from its correct position, I pre tacks, which may be secured to the bac plate with their laterally projecting heads overlying a portion of the 'upper face of the nut. By this means the nut is prevented from moving out of the aperture under any conditions.

In the form of connection shown lin Figs. 8 and 4, the nut is enabled to lie within the backing plate so as to present its upper surface substantially flush with that of the plate, thereby eliminating the presence of the projecting elements in proximity to the underside of the cushion. Arranged to cooperate vvith the nut is a threaded device such as a bolt 17 whose head 18 lies upon the under side of the cross bar to hold the cushion securely upon the seat.

I claim:

1. 'Ihe combination with a chair seat comprising an open frame, a plate mounted thereon and a cushion attached to the plate, of a bar extending across the opening in the frame, screw-threaded lbolts passing through the bar and the plate, nuts for the er `to use headed elements 16', such as i ends. of the bolts in engagement with the upper side of the plate, and means connected to the plate for preventing movement of the nuts wlth respect thereto.

2. The combination with a chair seat comprising an open frame, a plate mounted .thereon anda cushion attached to the plate,

cessed therewithin, said nuts being adaptedl to receive the ends of the bolts, substantially as described and for the purposes set forth.

3. The combination with a chair seat comprising an open frame, a plate mounted thereon and a cushion attached to the plate of a bar extended across the opening of th frame, screw-threaded bolts passing through the bar and plate, and conical Winged nuts 20 for the ends of the bolts secured to the plate and recessed therewithin, substantially as described. y

JOHN BENNETT, JR. 

